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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 250620Generated: October 30, 2026

Acetonitrile → 1-Butyl-3-[4-fluoro-3-(5-pyridin-3-yl-1H-pyrrolo[2,3-b]pyridine-3-carbonyl)phenyl]-urea

https://huagongshe.com/reaction/250620

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetonitrileHCID 6342—
Reactant3-Pyridinylboronic acidHCID 2734378—
ReactantHCID 58086051HCID 58086051—
CatalystHCID 178418397HCID 178418397—
SolventWaterHCID 962—
SolventPotassium CarbonateHCID 11430—
Product1-Butyl-3-[4-fluoro-3-(5-pyridin-3-yl-1H-pyrrolo[2,3-b]pyridine-3-carbonyl)phenyl]-ureaHCID 5808635561%

Reaction Conditions

Temperature120 °C

Reaction Steps

To 1-[3-(5-bromo-1H-pyrrolo[2,3-b]pyridine-3-carbonyl)-4-fluoro-phenyl]-3-butyl-urea (P-1637, 14.0 mg, 0.0000323 mol), 3-pyridylboronic acid (5.96 mg, 0.0000485 mol), and Tetrakis(triphenylphosphine)palladium(0) (0.820 mg, 7.09E-7 mol) were mixed in 1.00 M potassium carbonate in water (1.00 mL) and acetonitrile (2.00 mL, 0.0383 mol). The resulting mixture was heated at 120° C. in the microwave for 40 minutes. The reaction was extracted with ethyl acetate and water twice, and the combined organic layers were washed with 1M sodium bicarbonate followed by brine and the organic layer was dried over magnesium sulfate and filtered. The organic layer was concentrated and purified by reverse phase HPLC (acetonitrile and water with 0.1% formic acid) to give the compound as a white solid (P-1637, 8.5 mg, 61%). MS (ESI) [M+H+]+=432.3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07863288B2
Source datasetuspto-grants-2011_01
ORD IDord-71628bee21164eff8786736247bdb997
Source noteuspto-grants-2011_01